All carbohydrates originate from plants.所有的碳水化合物均来自植物。All theories originate from practice and in turn serve practice.任何理论都来源于实践,反过来为实践服务.The Geminides originate from mysterious 3200 Phaethon , which is an asteroid.双子座流星...
A certain risk is involved when cereal grains are maturing in the field on the stalk.当谷物在田间茎秤上正在成熟时就蕴藏着一定的危险.If Brazier effect occurs on a stalk, it will bend after 25 % to 30 % of flexion.发生Brazier屈曲的茎在危险截面的屈曲程度为25%～30%...
在方格纸上画出成比例的楼层平面图，标出门和窗的位置。Draw up a scale floor plan on squared paper, marking in the door opening and windows.对于住在较低楼层的居民, 从窗口逃生是可行的.From the lower floors of buildings, escape through windows is possible.旅馆老板在给楼层编号时会跳过1...
We went skipping down the street arm in arm.我们挽着胳膊，蹦蹦跳跳地走在大街上。Skipping is one of the most enjoyable aerobic activities.跳绳是最有乐趣的有氧健身运动之一。She was skipping to keep up with him.她连蹦带跳地走着，好跟上他的步伐。...
They like to go ballooning at weekends.他们周末喜欢乘气球玩.Since the modest start, many interesting characters have filled the pages of ballooning history.自从这次简易的起步以来, 在乘气球升空的历史篇章中充满了许多有趣的人物.We will be ballooning over the lake af...